{
  "manageEntity": {
    "action": "Update",
    "entityId": "175051266",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5d90cdcdfdc9b8a7fce3372f063c1c1fdbe30243a03e0b3eca39288cb52ed46f",
    "signature": "0xb3ec5e55867fa16a9cef72ea3e103dca259bb0a3e656b0859218fed1a64baf6e55cf19af6756c73e7c31f8f9a0e1bc97c81551f9b678198d064e6b3579339f931c",
    "signer": "0x3F4a7aF252f7461cFae7c3E87578B45a06284Fc5",
    "userId": "175051266"
  }
}